Subtracting 2-Digit Numbers: A Comprehensive Guide

The video tutorial teaches students how to subtract two-digit numbers using counting methods. It introduces the frog method for counting up and the fly method for counting backwards. The lesson emphasizes understanding number bonds to ten and provides practice problems to reinforce learning. Students are encouraged to apply these methods to solve subtraction problems effectively.

What is the main objective of today's lesson?

• Subtracting two-digit numbers by counting back

• Multiplying two-digit numbers

• Dividing two-digit numbers

• Adding two-digit numbers

Tags

CCSS.2.OA.C.4

Which number bonds make ten?

• 8 and 2

• 7 and 2

• 5 and 6

• 9 and 3

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CCSS.2.NBT.B.5

In the frog method, where does the frog start when subtracting 54 from 48?

• On 50

• On 48

• On 53

• On 54

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CCSS.1.OA.C.6

How many steps does the frog take from 48 to 50?

• 4 steps

• 3 steps

• 2 steps

• 1 step

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CCSS.1.OA.C.6

What is the result of 53 minus 48 using the frog method?

• 3

• 4

• 6

• 5

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CCSS.2.OA.A.1

When subtracting a one-digit number, what direction do we count?

• Up

• Forward

• Backward

• Down

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CCSS.1.OA.C.6

What is the result of 83 minus 6?

• 77

• 78

• 79

• 80

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CCSS.4.NBT.B.4

What is the result of 53 minus 5?

• 49

• 50

• 48

• 47

Tags

CCSS.1.NBT.C.5

How many steps are there from 46 to 50?

• 3 steps

• 5 steps

• 2 steps

• 4 steps

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CCSS.2.MD.B.6

What number makes 10 with 2?

• 6

• 7

• 9

• 8

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CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C